passing missing parameters to ZarrStore.open_store when opening a datatree (#9377)

* passing missing parameters to ZarrStore.open_store when opening a datatree

* Fix issue with passing parameters to ZarrStore.open_store when opening
  datatree in zarr format

* whats-new formatting

---------

Co-authored-by: Justus Magin <[email protected]>

Author: aladinor

doc/whats-new.rst

@@ -47,6 +47,9 @@ Bug fixes
   date "0001-01-01". (:issue:`9108`, :pull:`9116`) By `Spencer Clark
   <https://github.com/spencerkclark>`_ and `Deepak Cherian
   <https://github.com/dcherian>`_.
+- Fix issue with passing parameters to ZarrStore.open_store when opening
+  datatree in zarr format (:issue:`9376`, :pull:`9377`).
+  By `Alfonso Ladino <https://github.com/aladinor>`_
 
 Documentation
 ~~~~~~~~~~~~~

xarray/backends/zarr.py

@@ -1225,15 +1225,37 @@ def open_datatree(
         filename_or_obj = _normalize_path(filename_or_obj)
         if group:
             parent = NodePath("/") / NodePath(group)
-            stores = ZarrStore.open_store(filename_or_obj, group=parent)
+            stores = ZarrStore.open_store(
+                filename_or_obj,
+                group=parent,
+                mode=mode,
+                synchronizer=synchronizer,
+                consolidated=consolidated,
+                consolidate_on_close=False,
+                chunk_store=chunk_store,
+                storage_options=storage_options,
+                stacklevel=stacklevel + 1,
+                zarr_version=zarr_version,
+            )
             if not stores:
                 ds = open_dataset(
                     filename_or_obj, group=parent, engine="zarr", **kwargs
                 )
                 return DataTree.from_dict({str(parent): ds})
         else:
             parent = NodePath("/")
-            stores = ZarrStore.open_store(filename_or_obj, group=parent)
+            stores = ZarrStore.open_store(
+                filename_or_obj,
+                group=parent,
+                mode=mode,
+                synchronizer=synchronizer,
+                consolidated=consolidated,
+                consolidate_on_close=False,
+                chunk_store=chunk_store,
+                storage_options=storage_options,
+                stacklevel=stacklevel + 1,
+                zarr_version=zarr_version,
+            )
         ds = open_dataset(filename_or_obj, group=parent, engine="zarr", **kwargs)
         tree_root = DataTree.from_dict({str(parent): ds})
         for path_group, store in stores.items():